| Sci & Tech Chronology: In the year 522 bce |
Construction
Architect and engineer Eupalinus of Megara constructs a 1.7 m high by 1.7 m wide (5.5 ft by 5.5 feet) tunnel 1006 m (3300 ft) long under 275-m-high (900-ft-high) Mount Castro on the island of Samos (Greece) to supply water. The tunnel is built from both ends and the two parts miss by about 6 m (20 ft) horizontally and 1 m (3 ft) vertically (known from archaeological measurements made in the 1870s and 1880s). See also 530 bce Construction.
| 5min Related Video: Year 522 bce |
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 | Sci & Tech Chronology. History of Science and Technology, edited by Bryan Bunch and Alexander Hellemans. Copyright © 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. Read more |
